<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索于添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" stripe border>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="{ row }">
            <el-switch v-model="row.mg_state" active-color="#13ce66" inactive-color="#ccc" @change="userStateChanged(row)"> </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="{ row }">
            <!-- 修改 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(row.id)"></el-button>
            <!-- 删除 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(row.id)"></el-button>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total"> </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体部分 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密 码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮 箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电 话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog title="提示" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 表单内容 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮 箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手 机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色列表对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"> </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'User',
  data() {
    // 自定义验证规则
    // 验证邮箱的规则
    const checkEmail = (rule, value, cd) => {
      // 邮箱正则
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cd()
      }
      cd(new Error('请输入合法的邮箱！'))
    }

    // 验证手机号的规则
    const checkMobile = (rule, value, cd) => {
      // 手机号正则
      const regEmail = /^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
      if (regEmail.test(value)) {
        // 合法的手机号
        return cd()
      }
      cd(new Error('请输入合法的手机号！'))
    }

    return {
      // 用户参数对象
      queryInfo: {
        query: '',
        pagenum: 1, // 当前页码
        pagesize: 2 // 每页条数
      },
      // 用户列表
      userlist: [],
      // 总数据
      total: 0,
      // 添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加表单数据对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户表单规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制修改对话框的显示与隐藏
      editDialogVisible: false,
      // 修改的用户数据
      editForm: {},
      // 更新用户表单验证规则
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要配分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 以选中角色id
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户列表数据
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户数据失败！')
      // console.log(res)
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听 pagesize 改变事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户状态改变
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('修改用户状态失败！')
      }
      this.$message.success('修改用户状态成功！')
    },
    // 监听添加用户对话框关闭
    addDialogClosed() {
      // 重置表单数据
      this.$refs.addFormRef.resetFields()
    },
    // 添加新用户
    addUser() {
      // 表单预校验
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 验证通过
        // 发起添加新用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 根据id修改用户信息
    async showEditDialog(id) {
      // 根据id发起请求修改数据
      const { data: res } = await this.$http.get('users/' + id)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户数据失败 ！')
      }
      this.editForm = res.data
      // console.log(this.editForm)
      this.editDialogVisible = true
    },
    // 监听修改用户信息对话框关闭
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并体提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发送修改用户信息的用户请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新数据失败！')
        }

        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新数据成功！')
      })
    },
    // 根据id删除对应数据
    async removeUserById(id) {
      // 弹窗提示框是否删除
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 点击确定打印 confirm
      // 点击取消打印 cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') return this.$message.info('取消了删除！')
      // 确定删除 发送请求
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 分配角色处理函数
    async setRole(userinfo) {
      this.userInfo = userinfo

      // 发送请求获取所有角色列表
      const { data: res } = await this.$http.get('roles')

      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')

      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击确定按钮 分配角色
    async saveRoleInfo() {
      // 请求分配用户权限
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })

      if (res.meta.status !== 200) return this.$message.error('更新角色失败!')

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped></style>
